Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 27866

Hash
000000c61ddc93fdb2461539ca5499268f91611cc873bfe7fc41e8f042c91a0a
Confirmations
12959
Time
2026-10-20 05:28:56 UTC
Median time
2026-10-20 05:20:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
d6f503c61e4e8c01bafb21b5888e4eff4049a6b20942737bcabe8cbf693d1a8d
Previous block
000001473d9b991d8295627a6518929e4e2018199d72c00ced4332d0ec309be0
Next block
000000b6a8305b9cac61a07efc27d016973d8a92398504895c088a85c12169ec

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 27866 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
7e9e3fe8db101715d46b348dd63e2e35… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d6f503c61e4e…8cbf693d1a8d coinbase1250